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Spencer Howson AM / PM Newsletter

"What she had done is printed out one tab of an excel spread sheet and inadvertently not provided the second," Ms Bates told ABC Radio.

"I was not aware of that until yesterday."

She said Dr Flegg's staff had also let him down when his allegedly incomplete lobbyist register was tabled.

The opposition is calling for Dr Flegg to be sacked, amid claims from his sacked senior media officer that the minister failed to register more than 30 contacts with his son Jonathon, who works for communications business advisory firm.

"Minister Flegg like all of us rely on our staff," Ms Bates said.

"They didn't give him the guidance and support he needed."

She described the controversy, as well as that surrounding the allegedly mishandled political donations, as just "teething issues".

"There's always a lot of teething issues in any new government and I'm sure that they will all settle down," she said.

Ms Bates has also revealed her senior policy adviser Alistair Mitchell is flat mates with her son Ben Gommers.

She made the revelation during questioning by the opposition in parliament on Tuesday.

She said that she, Mr Gommers and Mr Mitchell had met with Mark Powell from Santoro Consulting, however they did not take part in any business discussion.

"Alistair and Ben have both known Mark Powell for many years on a social basis," she said.

"Despite this, I ensured that they were included in the lobbyists register because they were obviously at the same table.

"The last time I checked, I am allowed to dine with my son," she told parliament on Tuesday."

Mr Gommers' appointment as a departmental liaison officer in the department of Transport is the subject to a Crime and Misconduct Commission investigation.

Mr Caltabiano is also being investigated by parliament's ethics committee amid allegations he misled parliament over his business connections with Mr Gommers.